Float-reservoir for carbureters.



G. ROESCH.

FLOAT RESERVOIR FOR CARBURETERS.

APPLICATION FILED JUNE 29. `1917.

Patented June 18, 1918.

3 SHEETS-SHEET l.

G. RUEscH.

FLOAT RESERVOIR FOR CARBURETEHS.

APPLICMLON FILED luNE 29.1917.

Patented June 18, 1918.

3 SHEETS-SHEET 2.

G. ROESCH.

FLOAT RESERVOIR FOR CARBURETERS.

APPLICATION FILED JUNE 29| 19|?.

Patented June 18, 1918. y

3 SHEETS-SHEET 3. FIM

G'Eone'ns Bonson, or rams, FRANCE.

FLOAT-RESERVOIR FOB CARBURETERS.

Specication of Letters Patent.

Patented June 18, 41918.

Application led J une 29, 1917. Serial No. 177,730.

To all whom it may concern:

. Be it known that I, GEORGES Rensen, a citizen of Switzerland, residingat Paris, France, have invented certain new and useful- Improvements, inFloat-Reservoirs for Carburcters, of` which the following is aspecification.

The present invention relates to a liquid fuel reservoir for carburetershaving means for maintaining fuel at a constant level. Likeother knownreservoirs of this `general type it comprises a compartment whichcommunicates with the carbureter and is supplied with liquid fuel bymeans of a `feeding device regulated by` a float for maln- .taining aconstant level of the liquid fuel in the compartment, but it presentsthe peculiar feature ,that the compartment 1s adapted toturn on an axis,yby means of a counter-weight and is always kept in an upright positionirrespective of the position Vof this axis when turning, and thatsaidcompartment is located within a receptacle to which the liquid fuelis supplied las will behereinafter more fully described.

Fig` 3 is a central vertical section of a ,second form of theinvention.` y

- .Fig 4 is aA vertical cross-section of a r hird form taken on lineB--B of Fig. 5, and

Fig. 5 is an axial vertical section ofthe construction shown in Fig. 4.l

lThe reservoir comprises a cylindrical body .a (Figs. land 2) and acover b screwed thereon so as to closeit tightly. It is .mounted on aflying apparatus (not shown) ,so lthat itsaxis stands at right angles toithelongitudinal axis of the apparatus and `is Aprovided on itscircumference with a pipe necka1 to which a pipe c for the supply of:liquid fuel is connected by` means of a nipple d. v

. Ay cylindrical compartment e isinclosed Jwithin the body a andkturnson the` same axis. This is composed ofa body e1 and a cover e2 screwedthereunto.v It is likewise fitted laterally with two laxial pipe-neckscover b. The liquid fuel is admitted to the l,reservoir -,b by means ofa valve z' with a seat i1 and a valve i2 moving in aguide 3.

Thefvalve by its own weight tends to leave the seat but is pressedagainst it by an arm y connected to a float j. Arm jl is fulcrumed at jiinside of the compartment e. Through the combined action of the valveand float the level of the liquid withinthe compartment e is keptconstant. The fuel leaves this compartment through the neck e3 whichextends nearly to the bottom of the` compartment by a radial pipe e andterminates on the outside of the compartment in a conically shaped endpressed by a helical spring 7c against a corresponding circular seat ofa neck a2 on the body a, the helical spring acting through the body e1and its cover e2. This neck a2 is connected to the inlet of a carbureterof any type. The neck e4 likewise is continuedinside of the compartmente by a radial pipe e running in an opposite direction from the pipe e5and reaching nearly to the top` of the inside of compartment e forsecuring the communication between e and the atmosphere. This neck e*passes through a stuiing box Z provided with a lateral neck b1 of thecover b.

A counter-Weight m inside of the com-4 partment always keeps thiscompartment in an upright position irrespective of the inclination ofthe reservoir w-b. A clamping collar n provided with an indicator o forindicating at any moment on a scale the relative position of thecompartment is fitted on the neck e4.

The working of this form of the invention is as follows: V

The liquid fuel passes through neck a1 into the reservoir a--1 andnearly fills the space between it and compartment e. The fuel isadmitted as fast as is needed by the valve regulated by the ioat j, andwill therefore be kept practically at the same constant level within thecompartment e and from there it will flow to the carbureter through pipeez5 and through necks e, a2; the escape or the inlet of air as the casemay be taking place through the neck e4.

`If the fi ing apparatus is ascending or de scending t e reservoir af-bwill be inclined with the apparatus, but the compartment or receptacle eturnin on its axis, will be maintained in its upright position by thecounter-weight m.

Whatever may be the position of this axis liquid fuel in the compartmente will always be kept at the same level determined by the adjustments ofthe float y' and valve z'.

The pilot of the flying apparaten bis to observe ateveryY,momentthenposition of the reservoir by a glance lat the indicatoro and to regulate the saine@iiinecessary.`

The counter-Weight m as shown in Figs. 1, and 2 is located insideoftthecompartment, but as Willbe understood may also be employed in otherequivalentvmannersWithout (departing, from the nature of my invention. jln ythe secondforni ,of the inyention as shown in Fig. Bhthe cylindricalcompartment e-isf'likewise provided Withl tvvo lateral necksl c3,- e2;the -rst neck 'e3 communicating vWith van elbovv conduit g provided--Within'- the, sidewall of the cylindrical :body a andthrou'gh-Whichftlie fuel supply passes to the canbureter, and ithe second 'neck@"4 'being ``rigidly,` connected `with a pipe fr and adapted toturnlvii-ith this :pipeand with -rthe -c0unter-weight p inadelin one piece Alo- '.cated'outsideof the reservoir. The neck :e3 lhas fa.conicallyishaped end adapted tovconl,tact With' a corresponding'annular surface on Vone side of afring e-located in axchamber lprovidedr,therefor infthebody a2 and the neck c4 Vhas a `similar conicalAsurface adapt- 'ed to l`f z'intactwith acorres'ponding surface katl'the linner end :of agsleeve ftflitted -Within theneck-Z1 ofthe cover'72X'. Thefsleeve t ,is "TLshaped-iinlongitudinal section vand issurrounded 'for acertain distance by a'jring t1 made for-instance'ofcork and pressed by a spring 76X againstthe inner surface-of neck b1 andkept inv place by a Washer t2 'fixed te fthesleeife. 'lheispringfJcXbears l,against -a plug 'w screwedV Linto neck n 1 andlis sufficient forti-gliteningggtheY joint between-the surface 'ofsleeve t anditfheconicalsurfacefon' neck et, `for pushingi the Whole compartment fexvrom.-tliele'ftto'lthe right as kviewedin this gure,`- and for causingneck c3 to fpress against the annular seat f ol'i the '-ring AVs, andfor tightening this joint, any leakage between sleeve and innersurfacej'ofii5'1 being prevented-by l`the *ring fit1'.Y Consequently thetightness fof the neck e? doesnotfdepend -on a stuiing -boX, which asexperience has sh0Wn,-is not quite 'so easily 'adjusted Yif `:the

'The pipe '7" is journaled `jby means of ballbearingsv-in a Support fw`'iXed'to a'bracket 53 madeiinjon'epiece-fvviththecoverJb". v

In' the Ystrllcture shown7 in -VFigs.,k and' 5 the reservoir lai hasafcylindro-coln'ioaljslrape andby-means of screws mi ,is screwed ion'theWally/1 of a casing y inclosing the sprayingno'zzle .a "o'thefcarbureterjfed fromthe -res- @wenn *Thecompaitment Y Sis,`made in va YlovverV parte1 and an upper cover-162 -is provided with two necks fefnlfetvjoiilrfralled ivithinthe ball-'bearin'gsfycyy.gy #seated-WithinWallffz]1 andIvv-ithintheibo'dy al'.

f The neck *et connected -iig-idlyf with al 'pipe e6 extendsintethelinsidebethe lc'z'over'i:2A and makeslcommunication with theoutside at- A,With annular rims e7, e8, in contact with f -Nvgashersl1,2 made for instance of {liberathe Washer l being located in a chamberWithin Wall@hand-thezwasher 2 in a chamber in the body a, Where it iskept in place by the screvv-plug a2. yfA;spring {cf presses against r `asmaller lwasher in contact -Witlithe LWasher 2 insideofp'lugnz,andfmainta'ins the Washer 2 iagainst the conical rime8v off the.fneckge' The pressure of 1 this spring *cy :also acts 'throughlcompartment Ycl 'fr'om vthe yright Ato ,the left so as topress rim e7against-washer land thusseeure'a tight `joint on the yleft side 'asl-W'ell as-*fon Lthe 7right 'side-=o`f compartment ey.

lAsf shown r`in vFigs; '4 fand; 5ft-he pipe lneck fal for the liquid@vduel inlet mayibefatthefbotstom instead of atI the side L ofthe-casingand -aslWillf'be understood, various other "and equivalentconstructions -may loeZ ad apt'ed v'and Iused Without 'departing fromthenature-and spirit Fof my invention.

" I `claim 1 as Amy invention 1. A `fuel :reservoir'orcarbureters-comprising a casing, a receptacle 'pivotally 'mountedinflthe casingjand counter-Weighted to be maintained in an uprightposition ',therein, a= fuel inlet connection "to the easing,

means for .admitting fuel from A'the casing tion fromthe fs'aidreceptacle.

A2. lA1 fuel reservoir for carburetersffcom- ,-to-thevreceptacle andmaintainingraconstant -fuel leveltherein, and a fuel-outletJconnecprising` a casing, a?, receptacle pivotally ymountedmithe-casingand 3countervveighted;

to be maintained #in an upright position making communication betweentheinterior of the receptacle'andithe atmosphere.

l -uel reservoir: for icarburetersfcom- ,zprisi-ng -a casing, areceptacleiwithinithe casing, a fuelii'nletconnection toffthe-{easin)means for admittingtuelwtojthe frecepta e and maintaining thesameyatfacnstantflevel therein, fan outlet V`pipe connection by #which therreceptacle is `pivotally mounted at. one`v side *thereof in the isaidcasing, a {ipip'e foonlnectio'nmaking communication betweenthe #interiorftli'e -receptaclea'ndf the j -tlmosplrere 'andbywhich, thesa'idreceptaclev 'at the otiher said receptacle so asfto maintaiirjthe 'samein a valve operatin in the walls of the receptacle for admittln fuelthereto from the casing, means Withm the receptacle for controlling saidvalve to maintain the liquid therein at a constant level, a pipeconnection at one side of the receptacle and by which the same ispivotally mounted in the casing, the said pipe connection being a fueloutlet, a pipe connection at the opposite side of the receptacle and bywhich the receptacle is also pivotally mounted in the casing, the lastaforesaid pipe connection making communication between the interior ofthe receptacle and the atmosphere, and means by which the receptacle iscounter-Weighted to maintain the same in an upright position.

5. A fuel reservoir for carbureters comprising a casing, a fuelreceptacle Within the same, a fuel inlet connection in the casing, avalve operating in the Walls of the receptacle for controlling theadmission of fuel thereto from the casing, a lever ivotally mountedWithin the receptacle, a oat carried by said lever and adapted throughthe same to control the said valve to maintain a constant level of thefuel within the receptacle, a pipe connection at one side of thereceptacle extending ap roximately to the bottom thereof and by W ichthe recelptacle at this side is pivotally mounted in t e casing, thesaid pipe connection being a fuel outlet, a pipe connection at theopposite side of the receptacle extending approximately to the topthereof and by which the said receptacle is pivotally connected at itsopposite side in the said casing, the last aforesaid pipe connectionmaking communication between the interior of the receptacle and theatmos here, and a counter-Weight by means of which the receptacle ismaintained in an upright position Within the casing.

In testimony whereof I have affixed my signature in presence of twoWitnesses.

GEORGES ROESCH.

Witnesses:

CEAS. P. PREssLY, EMiLE BERTRAM.

copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

